Test of switch onto fault logic, distance protection zones one to five, local acceleration
logic, power swing detection and phase selection with load encroachment.
11.5.3
Current protection
Test/Function test modes/Current protection
Test of breaker failure protection and phase overcurrent protection, residual
overcurrent protection, instantaneous phase overcurrent protection, pole discordance
protection, instantaneous residual overcurrent protection, thermal overload
protection.
11.5.4
Voltage communication
Test/Function test modes/Voltage protection
Test of two step overvoltage, two step undervoltage and two step residual overvoltage
protection as well as overexcitation protection.
11.5.5
Frequency protection
Test/Function test modes/Frequency protection
Test of up to six instances of rate of change of frequency.
11.5.6
Multipurpose protection
Test/Function test modes/Multipurpose protection
Test of up to twelve instances of the general current and voltage function (GF).
11.5.7
Secondary system protection
Test/Function test modes/Secondary system supervision
Test of current circuit supervision and fuse failure supervision.
11.5.8
Control
Test/Function test modes/Control
Test of synchrocheck and energizing check function.
11.5.9
Logic
Test/Function test modes/Logic
Test of trip logic and event counter functions.
Section 11
Test the IED
58
Operator's manual
1MRK504049-UEN rev. D
RET 670
